1. Buy PVC cement and lengths of PVC pipe. You can use these to make poles for practicing vertical leaps or as makeshift parallel bars. PVC pipes of 3 to 6 feet--with a stable base--are needed for leaps, while using PVC cement to join vertical pipes of 9 inches to 1 foot in length with a cross pipe of about 2 feet in length becomes an inexpensive piece of equipment to practice railing exercises.
2. Use a length of twine or piece of string and masking tape to practice vertical jumps. You can tape the string between walkways, fence poles or two tall pieces of PVC pipe. That allows you to work on vertical jumps and gauge how high you can leap without injuring yourself.
3. Purchase two flat sticks of wood. A school ruler will do, as will pieces of discarded lumber which you can buy cheaply at any lumber store. They can be used to measure the distances of your jumps--starting on one and leaping towards the other--as well as perfecting your precision jumps in safety. You can buy more expensive equipment for this, but simple flat pieces of wood work just as well.
4. Use measuring tape to gauge the distances you set with your equipment. It's important to know how far or how high your leaps are, since it allows you to know what you can accomplish when practicing parkour outdoors in an uncontrolled environment.
Source: How to Buy Parkour Equipment | eHow.com